package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnume;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理所有异常
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class ExceptionControllerAdvice {

    /**
     * 统一处理校验异常
     * @param e
     * @return
     */
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e){
        log.error("数据校验出现问题:{}，异常类型:{}",e.getMessage(),e.getClass());

        Map<String, String> map = new HashMap<>();
        BindingResult bindingResult = e.getBindingResult();
        bindingResult.getFieldErrors().forEach((item)->{
            map.put(item.getField(), item.getDefaultMessage());
        });
        return R.error(BizCodeEnume.VALID_EXCEPTION.getCode(),BizCodeEnume.VALID_EXCEPTION.getMsg()).put("data",map);
    }

    /**
     * 处理未精确匹配的所有异常
     * @param e
     * @return
     */
    @ExceptionHandler(value = Exception.class)
    public R handleException(Exception e){
        log.error("数据校验出现问题:{}，异常类型:{}",e.getMessage(),e.getClass());
        return R.error(BizCodeEnume.UNKNOW_EXCEPTION.getCode(),BizCodeEnume.UNKNOW_EXCEPTION.getMsg());
    }
}
